This quote has been attributed to several sources, but its message is one that should guide school librarians as they embark on their career. Some may plan to find a position and stay with it to the end. Others may from the first want to be supervisors or administrators. All, in one way or another, will 
find that life events require changes to be made to original plans. It is best to keep options in mind from the very beginning. Using the School Librarian’s Career Planner as a guide, you will always have an option B—and often an option C to allow you to skillfully weather whatever comes your way.